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ping response on LAN comes from my webhost

Trevor Local
Trevor Local asked
on
Medium Priority
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Last Modified: 2010-04-18
Hello

I have a 2k3 domain. When I ping a bad node name on my LAN, for example "idiotpresident" --I get a reply from the DNS server of the company who hosts my website. What do I do, if anything?

thanks in advance
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Top Expert 2006

Commented:
whats the reply....

if you pinging a dud entry, then DNS will try and resolve internal, then look at forwarders....if you have an ISP forwarder then i am surprised....if you have an ISP entry in your TCPIP config then get rid of them and all will be well

Author

Commented:
thanks Jay
my forwarders are the IP's of my T1 carrier.
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Top Expert 2006

Commented:
do you get a response or a reply?

Author

Commented:
Reply from xxx.xxx.xxx.xxx etc.
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Top Expert 2006

Commented:
huh! Thats insane, i would talk to your ISP!
feptiasChief Dude
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Commented:
If you do ipconfig /all (from the command prompt) what does it say for "DNS Suffix Search List" ?

Author

Commented:
I have two entries:

xxx.mydomain.com
mydomain.com

when I ping the first, it resolves to my internal DNS server - 192.168.66.10
when I ping the second,  it resolves to the same IP as mentioned above- IP is from the people hosting our website.

thanks.

feptiasChief Dude
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Commented:
The IP address for your Preferred DNS server (also reported by ipconfig /all) should be 192.168.66.10 - i.e. your Preferred DNS server should be your internal DNS server.

If you then examine the forward lookup zones on that DNS server using the DNS Management Console, there should be a fwd lookup zone for mydomain.com. Within that zone there should be some Host A records including one for the DNS server xxx pointing to 192.168.66.10. There will also be some records called "(Same as parent folder)" - look for a Host A record called (Same as parent folder). Does it exist and, if so, what is the IP address set to for that record?
feptiasChief Dude
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Commented:
Come to think of it, the solution to your problem is very likely that you need to remove the DNS Search suffix xxx.mydomain.com. There should only be one search suffix and that is the one for your domain. There should not be a search suffix for your DNS server!

Author

Commented:
where do I remove that from?
thanks.
feptiasChief Dude
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Commented:
My Network Places -> Properties -> Local Area Connection -> Properties -> Internet Protocol (TCP/IP) -> Properties

Now click the Advanced... button and select the DNS tab. It is almost certainly in the list that says "Append these DNS suffixes in order". Remove it from that list. If the list will then be empty, that's fine, but change the radio button selection to "Append primary and connection specific DNS suffixes"


Author

Commented:
there are no entries in there, and the radio button is selected as well as the checkbox beneath it - "Append parent suffixes of the primary DNS suffix"

on the WINS tab there is an entry. Not sure why we would be using WINS-
Chief Dude
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Commented:
Even though WINS is theoretically "old" technology in a Windows Server 2003 environment, it is still advisable to have a WINS server. It helps with browsing and there are still applications that use NetBIOS. A number of things might stop working or would work more slowly if you removed all traces of WINS.

I'm out of ideas for the other problem. Can you post the full results of ipconfig /all here? (substitute dummy data for real values if you think there is anything sensitive shown in the output). Do you have more than one NIC? If so, check the TCP/IP settings on the other NIC.

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